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11 Sep

The power of compost — making waste a climate champion

A new way of using compost could boost global crop production and deliver huge benefits to the planet, according to a study co-led by The University of Queensland. Professor Susanne Schmidt from UQ's School of Agriculture and Food Sciences said adopting a Precision Compost Strategy (PCS) in large-scale agriculture could improve crop yield, soil health and divert biowaste from landfill where it generates harmful greenhouse gases. "Instead of relying just on mineral fertilisers, PCS involves supplementing the right type of compost with nutrients to match the needs of soils and crops," Professor Schmidt said. "Soils that have become compacted and acidic are then aerated and neutralised. "The result is they can retain more water, facilitate root growth and nourish the organisms that keep soils...
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11 Sep

Plastic upcycling: From waste to fuel for less

Problem plastics could be diverted from landfills and converted into fuel sources with new technology A plastics recycling innovation that does more with less, presented today at the American Chemical Society fall meeting in Chicago, simultaneously increases conversion to useful products while using less of the precious metal ruthenium. "The key discovery we report is the very low metal load," said Pacific Northwest National Laboratory chemist Janos Szanyi, who led the research team. "This makes the catalyst much cheaper." The new method more efficiently converts plastics to valuable commodity chemicals -- a process termed "upcycling." In addition, it produces much less methane, an undesirable greenhouse gas, as a byproduct, compared with other reported methods. "It was very interesting to us that there had been...
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